WellKnownSymbols (WN10)
1: class Person {
2: get [Symbol.toStringTag]() { // Customizes how objects are represented in Object.prototype.toString()
3: return "Human";
4: }
5: }
6: const person = new Person();
7: console.log(Object.prototype.toString.call(person));
8: // Output: [object Human] (instead of the usual [object Person] ). Usefull when you want to provide custom type checking.
Symbol.toStringTag customizes how an object is represented when Object.prototype.toString() [object Human]
WellKnownSymbols context:
ES6 context:
Order a job
Comments (
)
)
Link to this page:
http://www.vb-net.com/JavascriptES6/WN10.htm
|
|